package com.gmail.liulijuan.class4;

public class MathDemo {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		double a=Math.random();
		System.out.println(a);
		double b=a*100;
		System.out.println(b);
		int c=(int)b;
		System.out.println(c);
	}

}
